Home / 768,622.95-1,061,012.31-496,713.24

Finding the Fourth Proportional to 768,622.95, 1,061,012.31 and 496,713.24

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Solution

The fourth proportional to 768,622.95, 1,061,012.31 and 496,713.24 is: 685,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,622.95 : 1,061,012.31 = 496,713.24 : x
  2. Step 2: Convert to fraction form
    768,622.95/1,061,012.31 = 496,713.24/x
  3. Step 3: Cross multiply
    768,622.95x = 1,061,012.31 × 496,713.24
  4. Step 4: Simplify right side
    768,622.95x = 527,018,862,179.98
  5. Step 5: Solve for x
    x = 527,018,862,179.98/768,622.95
  6. Step 6: Final answer
    x = 685,666.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.